Knob attachment



(mew H. J. P. WHIPPLE.

FIG-=1.

v 5 Um I "p61 WITNESSES: IIVi EIVTOI? (A. QLW 170W BY 14 dfl ATTORNEY.

' UNITED STATES PATENT OFFICE.

HENRY J. P. l/VHIPPLE, OF NEW HAVEN, CONNECTICUT.

KNOB ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 473,988, dated May 3,1892. Q Application filed June 5,1891. Serial No. 395,199. (Model-l ToaZZ whom it may concern:

Be it known that I, HENRY J. P. l/VHIPPLE, a citizen of the UnitedStates, residing at New IIaven,in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements in KnobAttachments; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in knobattachments, and has for its object to provide a device of thisdescription having few and simple parts, which shall be capable of closeadjustment to doors of different thickness and of ready attachment anddetachment, but which shall not be subject to accidental displacementwhen in position; and with these ends in view my invention consists inthe construction and combination of elements hereinafter fullyexplained, and then recited in the claims.

In order that those skilled in the art to which my invention appertainsmay fully understand its construction and method of operation, I willdescribe the same in detail, reference being had to the accompanyingdrawings, and the numerals marked thereon, which form a part of thisspecification.

Figure 1 is a longitudinal section showing a pair of knobs attached upona door by means of my invention. Fig. 2 is an end elevation of thescrew-threaded collar; Fig. 3, a plan view of the rose, looking fromitsinner end; Fig. 4, a side elevation showing the rose and thescrew-threaded collar in assembled position; Fig. 5, a plan View of theclutchsleeve looking from its outer end; Fig. 6, a plan View of theinner end of theremovable knob; Fig. 7, a section showing the parts inprocess of assembly; Fig. 8, a detail of the rose, showing amodification; and Fig. 9, a detail plan View of the slightly-modifiedform of sleeve used in Fig. 8.

The door, which I designate by the numeral 1, is bored through from sideto side, as shown at 2, and through this is introduced a squared spindle3, bearing a knob and shank I 4. The inner end of this shank hasabearing in a rose 5 of any ordinary construction, secured upon the door.The outer end of the spindle 3 is screw-threaded, as at 6, (see Fig. 7,)and upon the knob Sis secured a hub 9, interiorly screw-threaded andadapted to admit. the threaded end of the spindle. Exteriorly, as seenat Fig. 1, this hub is smooth. Projecting laterally from the base of thehub 9 are two small lugs 10, whose shape is clearly shown at Figs. 1 and6.

11 is a knob-rose having lugs 12, adapted. to hold it upon the door asagainst rotation, and may have further provision for attach-- ment-as,for instance, the screw-holes 13. This rose is interiorlyscrew-threaded, as seen at 14:, and in a small tubular bearing formedjust outside the periphery of the central hole is a pin 15, normallyprojected outward by means of a spring 16, secured in the hollow rearside of the rose.

17 is a collar having an internal abutmentshoulder 18 and an annularflange 19, the latter being provided with a series of notches 20, whichform seats with which the spring-actuated pin may engage.

21 is a sleeve. (Shown in section and plan at Figs. 1 and 5.) Towarditsdiminishedend it is square as to its interior, so as to closely fit thesquared portion of the spindle 3. At its outer end it has recesses 22,four in number, adapted, as will hereinafter appear, to cooperate withthe lugs 10 upon the knob. This construction may also be usedinconnection with other methods of attaching knobs, as with the side screwin the ordinary knob for the purpose of obtaining close adjustment.

In the operation of my invention the door to be fitted is first suitablybored from side to side, as shown in the drawings. The rose 5 is thenplaced against the door and held in position by the spurs underneath, ormay be secured by screws or other suitable means. The spindle 3, withthe knob 4 attached to it, is then inserted through the hole, the shoulder upon the knob-shank seating in the rose.

The other rose llis then affixed in proper position over the hole uponthe other side of the door and the screw-threaded collar 17 screwed intoit as far as it will go, the pin 15 being meanwhile pressed inward bythe finger or some small instrument, so that it will not engage witheither of the notches 20, and thus hold the collar as against rotation.The sleeve 21 is then seated in the collar 17 and the screw- IOOthreaded hub of the knob 8 screwed inwardly until the inner faces of thelugs 10 are substantially flush with the surface of the sleeve 21, inwhich the recesses 22 are cut, and in line with two of such recesses.When the parts are in this position, the pin 15 is held out ofengagement with the flange of the screwthreaded collar, and the latteris backed off in its screw-threaded seat until the lugs 10 engage therecesses 22 to their full depth, and the collar can be turned outwardlyno farther. The pin is then permitted to engage with one of the notches20, and thereby any accidental rotation of the collar and release orloosening the parts is prevented.

The method of assembling just described will be fully understood by acomparison of Fig. 1, wherein the parts are shownwith the assemblingoperation completed, and Fig. 7, wherein they are shown with thescrewthreaded collar not yet backed outward to take up the lostmotionand engage the lugs with the recess. I p

In Figs. 8 and 9 I have shown, instead of the spring-actuated pin, alocking device, which consists of ascrew 23, threaded through the rose11 and adapted to abut against and bind the sleeve. I show this simplyas one alternative means of fastening.

I do not deem it essential that the collar 17 shall be provided withsuch notches as are shown, since holes through the flange may besubstituted, and, furthermore, without departing from the spirit of myinvention any other locking device for the screw-threaded collar, suchas shown at Fig. 8, which Will hold said collar as against displacement,may be substituted for the spring-actuated pin.

The outwardly-movable screw-threaded collar seated in the rose andhaving means for firmly securing it as against rotation may be used fortaking up lost motion in knob attachments differing in construction fromthat shown at Figs. 1 and 2. This forms a secondary feature of myinvention and is recited in claim 4.

I claim l. The combination, with the externallythreaded knob-spindle,ofthe internally-screwthreaded rose, the externally-screw-threaded collar,the tubular sleeve seated in said collar and provided withlocking-recesses, the knob having a hub to engage the spindle and one ormore locking-lugs, and means for engaging and holding the screw-threadedcollar as against rotation.

2. The combination, with the knob-spindle having a knob attached to oneend and screwthreaded as to the other end, of an internallyscrewthreadedrose, an externallyscrewthreaded collar provided with anabutmentshoulder and adapted to enter said rose, the tubular sleeveseated in the collar and fitting the squared portion of the knob-spindleand provided with locking-recesses in its outer face, the loose knobhaving a screw-threaded.

hub and locking-lugs to engage the recesses in the sleeve, and aspring-actuated locking device mounted in the rose and adapted to engageand hold the screw-threaded collar as against rotation, substantially asand for the purpose specified.

3. In a knob attachment, the combination, with the spindle, of a sleevesliding thereon and provided with locking-recesses, the knob providedwith projecting lugs adaptedto fit the recesses, and a screw-threadedcollar interposed between and engaging thesleeve and rose and adapted tooperate the sleeve outward into engagement with the knob, substantiallyas described.

4. In a knob attachment, the combination, with the knob and its shank,of the internally-screw-threaded knob-rose, theexternally-screw-threaded collar 17, seated in and movable relative tosaid rose and engaging the inner end of the knob-shank, and meanscarried by the rose and engaging the collar, whereby the latter may befirmly held as against movement when in adjustedposition, substantiallyas set forth.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY J. P. WHIPPLE.

Witnesses:

SHERMAN H. HUBBARD, M. O. HINOHOLIFFE.

